The only way to industrial production of primary aluminum is currently Holzer Herou aluminum electrolysis. Invented by Holzer in the United States and France's eiru in 1886. Holzer Herou aluminum electrolysis is in cryolite alumina as raw materials, (Na3AlF6) as the electrolyte flux, by electrolysis method at 950 - 970 DEG C under the condition of the electrolyte in molten aluminum and oxygen is decomposed into alumina, aluminum in carbon cathode in liquid phase precipitation of oxygen in carbon anode in the form of escape carbon dioxide gas. Each production of a ton of raw aluminum, can produce 1.5 tons of carbon dioxide, comprehensive power consumption of about 15000kwh.
The industrial aluminum electrobath can be divided into three types: side inserted anode self baking tank, upper inserted anode self baking tank and baked anode trough. Self baking cell technology is being phased out because of the high power consumption and environmental protection in the process of electrolysis. At present, the world's annual output of raw aluminum is about 28 million tons, China's annual output of raw aluminum is about 7 million tons.
If necessary, the primary aluminum obtained by electrolysis can be refined to obtain high-purity aluminum. The current method of aluminum alloy aluminum tube supplier
production is mainly based on melt blending. Because of the excellent machinability of aluminum and its alloys, they are produced by forging, casting, rolling, punching and pressing.